Hard to explain, but here it goes:
Spreadsheet A has 4 columns:
Part #, Description, Current Cost, 2007 Cost
In the part number column there is 4000 parts. We only make 1500 of those
(it's a Customers Spreadsheet). All the fields are filled in except 2007
Cost. They want our parts 2007 price put in there.

Spreadsheet B has our data... 4 columns
Part #, Description, Current Cost, 2007 Cost.
1500 parts. Everything filled in, including 2007 Cost.

I want Spreadsheet A to say, if Spreadsheet B has a part number that matches
A, pull the 2007 cost from spreadhseet B and put it in spreadsheet A 2007
cost field.

So in theory, A would update the parts price from spreadsheet B.

Hope this isn't confusing... example:

SpreadSheet A

Part Desc 06 Price 07 Price
1 block 5.00
2 sphere 7.00


Spreadsheet B

Part Desc 06 Price 07 Price
1 blk blk 4.50 6.50
2 rd crcl 6.50 9.50


We have different desc, different 06 price (it's our sell price compared to
theirs), however the part number is the same. However they might have part
number 3 and we don't. The one's they have that we have I want the 2007 price
to fill in their sheet.

Thank you in advance!